AN/FPS-90

Replaced an earlier AN/FPS-6A height-finder radar located on this spot. The FPS-90 is a high-powered version of the FPS-6A.

"The AN/FPS-6 radar was introduced into service in the late 1950s and served as the principal height-finder radar for the United States for several decades thereafter. Built by General Electric, the S-band radar radiated at a frequency of 2700 to 2900 MHz. Between 1953 and 1960, 450 units of the AN/FPS-6 and the mobile AN/MPS-14 version were produced."

www.radomes.org/museum/equip/radarequip.php?link=fps-6....